diff --git a/CHANGELOG.md b/CHANGELOG.md
index 38194e3a88..689c89ce48 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Removed
 
 ### Fixed
+- Fix integer overflow for variables in indices stats response ([#960](https://github.com/opensearch-project/opensearch-java/pull/960))
 
 ### Security
 
diff --git a/java-client/src/main/java/org/opensearch/client/opensearch/_types/QueryCacheStats.java b/java-client/src/main/java/org/opensearch/client/opensearch/_types/QueryCacheStats.java
index 77e93b0e9e..848038a336 100644
--- a/java-client/src/main/java/org/opensearch/client/opensearch/_types/QueryCacheStats.java
+++ b/java-client/src/main/java/org/opensearch/client/opensearch/_types/QueryCacheStats.java
@@ -49,22 +49,22 @@
 
 @JsonpDeserializable
 public class QueryCacheStats implements JsonpSerializable {
-    private final int cacheCount;
+    private final long cacheCount;
 
-    private final int cacheSize;
+    private final long cacheSize;
 
-    private final int evictions;
+    private final long evictions;
 
-    private final int hitCount;
+    private final long hitCount;
 
     @Nullable
     private final String memorySize;
 
     private final long memorySizeInBytes;
 
-    private final int missCount;
+    private final long missCount;
 
-    private final int totalCount;
+    private final long totalCount;
 
     // ---------------------------------------------------------------------------------------------
 
@@ -88,28 +88,28 @@ public static QueryCacheStats of(Function<Builder, ObjectBuilder<QueryCacheStats
     /**
      * Required - API name: {@code cache_count}
      */
-    public final int cacheCount() {
+    public final long cacheCount() {
         return this.cacheCount;
     }
 
     /**
      * Required - API name: {@code cache_size}
      */
-    public final int cacheSize() {
+    public final long cacheSize() {
         return this.cacheSize;
     }
 
     /**
      * Required - API name: {@code evictions}
      */
-    public final int evictions() {
+    public final long evictions() {
         return this.evictions;
     }
 
     /**
      * Required - API name: {@code hit_count}
      */
-    public final int hitCount() {
+    public final long hitCount() {
         return this.hitCount;
     }
 
@@ -131,20 +131,21 @@ public final long memorySizeInBytes() {
     /**
      * Required - API name: {@code miss_count}
      */
-    public final int missCount() {
+    public final long missCount() {
         return this.missCount;
     }
 
     /**
      * Required - API name: {@code total_count}
      */
-    public final int totalCount() {
+    public final long totalCount() {
         return this.totalCount;
     }
 
     /**
      * Serialize this object to JSON.
      */
+    @Override
     public void serialize(JsonGenerator generator, JsonpMapper mapper) {
         generator.writeStartObject();
         serializeInternal(generator, mapper);
@@ -188,27 +189,27 @@ protected void serializeInternal(JsonGenerator generator, JsonpMapper mapper) {
      */
 
     public static class Builder extends ObjectBuilderBase implements ObjectBuilder<QueryCacheStats> {
-        private Integer cacheCount;
+        private Long cacheCount;
 
-        private Integer cacheSize;
+        private Long cacheSize;
 
-        private Integer evictions;
+        private Long evictions;
 
-        private Integer hitCount;
+        private Long hitCount;
 
         @Nullable
         private String memorySize;
 
         private Long memorySizeInBytes;
 
-        private Integer missCount;
+        private Long missCount;
 
-        private Integer totalCount;
+        private Long totalCount;
 
         /**
          * Required - API name: {@code cache_count}
          */
-        public final Builder cacheCount(int value) {
+        public final Builder cacheCount(long value) {
             this.cacheCount = value;
             return this;
         }
@@ -216,7 +217,7 @@ public final Builder cacheCount(int value) {
         /**
          * Required - API name: {@code cache_size}
          */
-        public final Builder cacheSize(int value) {
+        public final Builder cacheSize(long value) {
             this.cacheSize = value;
             return this;
         }
@@ -224,7 +225,7 @@ public final Builder cacheSize(int value) {
         /**
          * Required - API name: {@code evictions}
          */
-        public final Builder evictions(int value) {
+        public final Builder evictions(long value) {
             this.evictions = value;
             return this;
         }
@@ -232,7 +233,7 @@ public final Builder evictions(int value) {
         /**
          * Required - API name: {@code hit_count}
          */
-        public final Builder hitCount(int value) {
+        public final Builder hitCount(long value) {
             this.hitCount = value;
             return this;
         }
@@ -256,7 +257,7 @@ public final Builder memorySizeInBytes(long value) {
         /**
          * Required - API name: {@code miss_count}
          */
-        public final Builder missCount(int value) {
+        public final Builder missCount(long value) {
             this.missCount = value;
             return this;
         }
@@ -264,7 +265,7 @@ public final Builder missCount(int value) {
         /**
          * Required - API name: {@code total_count}
          */
-        public final Builder totalCount(int value) {
+        public final Builder totalCount(long value) {
             this.totalCount = value;
             return this;
         }
@@ -275,6 +276,7 @@ public final Builder totalCount(int value) {
          * @throws NullPointerException
          *             if some of the required fields are null.
          */
+        @Override
         public QueryCacheStats build() {
             _checkSingleUse();
 
@@ -294,14 +296,14 @@ public QueryCacheStats build() {
 
     protected static void setupQueryCacheStatsDeserializer(ObjectDeserializer<QueryCacheStats.Builder> op) {
 
-        op.add(Builder::cacheCount, JsonpDeserializer.integerDeserializer(), "cache_count");
-        op.add(Builder::cacheSize, JsonpDeserializer.integerDeserializer(), "cache_size");
-        op.add(Builder::evictions, JsonpDeserializer.integerDeserializer(), "evictions");
-        op.add(Builder::hitCount, JsonpDeserializer.integerDeserializer(), "hit_count");
+        op.add(Builder::cacheCount, JsonpDeserializer.longDeserializer(), "cache_count");
+        op.add(Builder::cacheSize, JsonpDeserializer.longDeserializer(), "cache_size");
+        op.add(Builder::evictions, JsonpDeserializer.longDeserializer(), "evictions");
+        op.add(Builder::hitCount, JsonpDeserializer.longDeserializer(), "hit_count");
         op.add(Builder::memorySize, JsonpDeserializer.stringDeserializer(), "memory_size");
         op.add(Builder::memorySizeInBytes, JsonpDeserializer.longDeserializer(), "memory_size_in_bytes");
-        op.add(Builder::missCount, JsonpDeserializer.integerDeserializer(), "miss_count");
-        op.add(Builder::totalCount, JsonpDeserializer.integerDeserializer(), "total_count");
+        op.add(Builder::missCount, JsonpDeserializer.longDeserializer(), "miss_count");
+        op.add(Builder::totalCount, JsonpDeserializer.longDeserializer(), "total_count");
 
     }
 
diff --git a/java-client/src/test/java/org/opensearch/client/opensearch/_types/QueryCacheStatsTest.java b/java-client/src/test/java/org/opensearch/client/opensearch/_types/QueryCacheStatsTest.java
new file mode 100644
index 0000000000..2dff4c0799
--- /dev/null
+++ b/java-client/src/test/java/org/opensearch/client/opensearch/_types/QueryCacheStatsTest.java
@@ -0,0 +1,39 @@
+package org.opensearch.client.opensearch._types;
+
+import static org.junit.Assert.assertEquals;
+
+import jakarta.json.stream.JsonParser;
+import java.io.StringReader;
+import org.junit.Test;
+import org.opensearch.client.json.jackson.JacksonJsonpMapper;
+
+public class QueryCacheStatsTest {
+
+    @Test
+    public void testLongSerialization() {
+        QueryCacheStats expected = new QueryCacheStats.Builder().cacheCount(2757938871l)
+            .cacheSize(1757938872l)
+            .evictions(3757938873l)
+            .hitCount(4757938874l)
+            .memorySizeInBytes(5757938875l)
+            .missCount(6757938876l)
+            .totalCount(7757938877l)
+            .build();
+
+        String jsonString = "{\"cache_count\": 2757938871, \"cache_size\": 1757938872, \"evictions\":"
+            + " 3757938873, \"hit_count\": 4757938874, \"memory_size_in_bytes\": 5757938875, \"miss_count\":"
+            + " 6757938876, \"total_count\": 7757938877}";
+
+        StringReader reader = new StringReader(jsonString);
+        JacksonJsonpMapper mapper = new JacksonJsonpMapper();
+        JsonParser parser = mapper.jsonProvider().createParser(reader);
+        QueryCacheStats actual = QueryCacheStats._DESERIALIZER.deserialize(parser, mapper);
+        assertEquals(expected.hitCount(), actual.hitCount());
+        assertEquals(expected.memorySizeInBytes(), actual.memorySizeInBytes());
+        assertEquals(expected.missCount(), actual.missCount());
+        assertEquals(expected.cacheCount(), actual.cacheCount());
+        assertEquals(expected.totalCount(), actual.totalCount());
+        assertEquals(expected.cacheSize(), actual.cacheSize());
+        assertEquals(expected.evictions(), actual.evictions());
+    }
+}